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a) The TEM images of the adhesion of TA‐siRNA nanogels to macrophages and cellular uptake of the nanogels. b) The effect of an electric field on the adhesion and cellular uptake of the nanogels. c) Effect of ES therapy on the release of siRNA from PHTB(TA‐siRNA) hydrogels during wound application. The siRNA was labeled with a green immunofluorescent stain (i.e., 5‐FAM), and the blue color represents DAPI‐stained nucleus. The scale bar represents a 500 µm scale.
